Malcom cost Barca €41 million &lpar;£38m&sol;&dollar;47m&rpar; and his slow start has seen a number of transfer and loan links crop up&comma; with Everton originally thought to be front-runners before Marco Silva denied interest&period;

The latest rumours suggested Barca tabled an offer for Willian which amounted to €55m &lpar;£49m&sol;&dollar;63m&rpar;&comma; including Malcom&comma; but Sarri says the Chelsea man simply is not leaving&period;

When asked if he would be happy for Willian to leave&comma; Sarri told reporters&colon; "Of course not&comma; because as you know a winger for us is very important&period;

"I think he can do better&comma; because the potential is higher&comma; but he's very important for us&comma; so I think it's impossible to lose him in January&period;&NewLine;

"I didn't receive anything &lsqb;about Willian&rbrack; yesterday &lsqb;Thursday&rbrack;&period; You'll have to ask the club and ask about the market&comma; because if you ask me about the market you put me in trouble&comma; because I don't know&period;"

Elaborating on his desire for Willian to play at a higher level&comma; Sarri wants the winger to show more initiative off the ball and to make himself a bigger threat in the penalty area&period;

"Usually he wants ball to his feet&comma; so I think he can improve in movements without the ball&comma;" Sarri said&period; "He has the potential to score more&period;"

Alvaro Morata has also been heavily linked with a move away from Chelsea and is expected to depart in one way or another this month&comma; with Sevilla interested in a loan deal and Atletico Madrid said to be considering signing him permanently&period;

If Morata does leave&comma; Sarri will be insisting on a replacement&period;

"Of course&comma; if he goes to another club we need a replacement&comma; it's normal&comma;" the Italian added&period;

"At the moment&comma; he is here&comma; so I think he has to think only of playing&comma; because in this moment in Europe there are another 300 players involved in the market and they must only think to next matches or it's impossible to play&period;"